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Source Code

# File action_view/helpers/form_helper.rb, line 519
def to_check_box_tag(options = {}, checked_value = "1", unchecked_value = "0")
  options = options.stringify_keys
  options["type"]     = "checkbox"
  options["value"]    = checked_value
  if options.has_key?("checked")
    cv = options.delete "checked"
    checked = cv == true || cv == "checked"
  else
    checked = self.class.check_box_checked?(value(object), checked_value)
  end
  options["checked"] = "checked" if checked
  add_default_name_and_id(options)
  tag("input", options) << tag("input", "name" => options["name"], "type" => "hidden", "value" => options['disabled'] && checked ? checked_value : unchecked_value)
end